Lamp-burner



(No Model.)

'E.B..REQUA.

LAMP BURNER.

Patented Aug. 23, 1881.

EINITED STATES FFICE.

ATENT LAMP-BURNER.

SPECIFICATION forming part of Letters Patent No. 246,200, dated August 23, 1881.

Application filed June 30, 1881.

To all whom it may concern place upon the chimney-hold er; to obviate the I necessity of perforating the ring and radial arms of the base portion of the burner; to construct the foraminous air-distributer in such manner as to maintain the burner in a comparatively cool condition and prevent eddies in the currents ofair passing through the-airdistributor to the flame; and to improve the general construction and arrangement of certain parts of the burner, as will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings, Figure l is a section taken on a vertical plane through the burner. Fig. 2 is a top or plan view of the base portion thereof. Fig. 3 is a top or plan view of the foraininous plate or air-distributer. Fig. 4 is a top or plan view of the upper cone-section of the burner, and Fig. 5 is a side elevation of Fig. 4.

1n the burner constructed in accordance with my present invention the flanged ring A and the radial arms B, connecting the same with the cap-plate G ofthe ratchetwheel case and housing, are made imperforate, whereby the base of the burner comprising these elements can be readily cleaned, and dirt will not be liaable to collect thereon.

The ratchet-wheel case or housing D is provided with the usual screw-neck, d, for securing it to the collar of the oil-fount, and the wicktube passes through it and the cap and is firmly secured to both the housing andthe cap.

The upper cone-section, F, of the burner, which also constitutes the chimney-support, comprises the cone f, which surrounds the wicktube, and an annular flange or base, f, extendin g laterallyfmm the base of the cone, and pro- (No model.)

vided with a series of perforations which serve to admit air into the chimney that is supported upon the said flange. This annular perforated flange f of the upper or cone-section of the burner is provided at its outer portion with a downwardly-projecting flange, G, which is inclined or flares outwardly, and is widened or enlarged at intervals at the points where the chimney-holding spring-fingers H are riveted to it. These widened portions ofsaid flange constitute depending spring-ears g, the resilience of which, combined with the spring action of the fingers H, adds considerably to the efficiency of the latter and tend to prevent them from being'weakened by usage before the burner has become -worn out. The inward inclination given to the spring-fingers by reason of the outward flare of the flange to which they are attached also increases their spring action and durability, and by forming the said fingers separate from the upper or cone section of the burner they can be made thicker and heavier than if they were formed integral with the same. The base of the chimney rests upon the annular perforated flange of this part ot' the burner, outside of the outer line of perforations, so that the air campass upward through the perforations into the-interior of the chimney to supply the vacuum necessarily caused therein by combustion.

The flange G of the upper section of the burner is adapted to tit upon the annular vertical flange a of the ring comprised in the base of the burner, and it is provided at one side with a slot, 9, which receives a lip, a, projecting laterally outward from the flange a of the base, and at its opposite side formed with a depending spring-clip, which, when the two sectionsotthe hurnerarefit-ted together, presses upon the vertical flange of the base, and thereby prevents any accidental disconnection of the said parts.

In forming the base of the burner I propose making the flanged ring with its lip and the cap of the ratchet-wheel housing or case connected with the flanged ring by the hereinbefore-described radial arms all in one piece, which cheapens the construction and renders the same more durable than if made in several parts.

Instead of forming theforaminous cap or airdistributer I of a semi-spherical shape, and of such height that a considerable portion of the wick-tube which passes through a slot in the upper end of the same will extend above it, I extend said foraminous air-distributer upward almost to the top end of the wick-tube, and form the same so as to approximate closely to the shape of the whole of the upper or cone section of the burner. The lower portion of this foraminous plate or air-distributer flares outwardly to an extent which will give to its base or lowest portion a diameter about equal to the diameter of the space bounded by the vertical flange a of the base, so that the rim of the foraminous plate or air-distributer will seat in the angleformed between the ring A and its marginal flange.

The annular corner formed at the juncture of the cone and its lateral perforated base flange rests upon the upper or outer side of the foramiuous plate or air-distributer, so as to divide the draft or current of air passing through the base of the burner, whereby one current will be caused to pass to the wick and the other into the chimney. By thus extending upward the foraminous air-distributer nearly to the top of the wick-tnbe,it will be seen that a considerable portion of the air within said device will pass up alongside ot' the wick-tube to within a short distance of its top before passing out through the perforations into the space between the wick-tube and the cone-deflector, thereby keeping the former comparatively cool along the greater part of its length, and also providing space for a large body of cool air, the upper portion of which will be in close proximity to the flame. I have also found that by this construction the upward current of air will not form small eddies between the perforations, as is the case of depressed or flat perforated airdistributing plates, this avoidance of such ob jectionable eddies being chiefly due to the subdivided lateral currents passing through the side perforations ot' the elevated air-distributer into the small space or air-passage between the same and the cone, and also the steadiness of the flame will not be afi'ected by currents of air. The air between this perforated plate or air-distributer and the upper or cone section of the burner will rise rapidly and keep the entire upper section of the burner comparatively cool, and by extending the perforated plate to such height above the radial arms of the base portion of the burner the said arms and the ring with which they are formed will not require perforations for the air to pass through, the spaces between said arms being suflicieut for such purpose.

What I claim is- 1. The combination, in alamp-burner, of the spring-fingers for holding the chimney with the upper cone-section of the burner, comprising a horizontal annular flange, extending laterally from the base of the deflecting-cone, and an annular flange projecting downward from the rim of the horizontal flange, and widened at intervals to form springs, the spring-fingers being riveted to these widened spring portions of the said flange, substantially as described.

2. In a lamp-burner, the combination of the upper cone-section, laterally extended at its base, and provided with the depending flange, formed at intervals into outwardlyflaring widened spring portions, to which the springfingers are riveted in an inclined position, substantially as and for the purposes described.

3. In a lamp-burner,the upper cone-section, F, provided with the laterally-extended perforated flan gef, and the ring A, provided with the upward-projecting flange a and the wicktube, in combination with the detachable coneshaped foraminous air-distributor I, extending into the upper cone-section to a point at or adjacent to the upper end of the wick-tube, and having its lower portion extended laterally under the perforated flange of the upper conesection and loosely resting on the flanged basering of the burner adjacent to the flange on the latter, substantially as described.

4. A lamp-burner consisting of the upper cone-section, F, laterally extended at its base, and provided with the depending flange G, having the slot g and spring-clip g", in combination with the base-ring A, having the upward-projecting flange a, arranged within the depending flange of the upper cone-section, 9

and provided with the lateral lip a, the said spring-clip being adapted to engage beneath the flanged base-ring, all substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing wit- IIGSSGS.

ELIAS B. REQUA. Witnesses:

EDWARD SoHEEL, ROBERT D. WYNKooP. 

